US8894813B2ActiveUtilityPatentIndex 50
Absorbent barrier tissue
Est. expiryAug 17, 2032(~6.1 yrs left)· nominal 20-yr term from priority
Inventors:ZWICK KENNETH JOHNCARSON PETER LEESHANKLIN GARY LEESMABY MICHAEL WILLIAMREKOSKE MICHAEL JOHNDYER THOMAS JOSEPHGOULET MIKE THOMAS
D21H 17/35D21H 27/002D21H 27/32D21H 27/005D21H 27/40Y10T428/24612D21H 17/36Y10T428/27Y10T428/24455
50
PatentIndex Score
1
Cited by
62
References
16
Claims
Abstract
In general, the present disclosure is directed to creped tissue webs, and products produced therefrom. The creped webs and products are strong, soft, and have improved strike-through and absorbency properties. The improvement in both strike-through and absorbency is achieved in-part by increasing the basis weight of the web, while at the same time reducing the creping composition add-on levels.
Claims
exact text as granted — not AI-modifiedWe claim:
1. A non-post treated creped tissue product comprising two or more tissue webs, wherein the basis weight of each web is from about 16.5 to 20 gsm and the product has a strike-through greater than about 2 seconds and an absorbent capacity greater than about 27 grams, wherein the creped tissue product has not been post-treated with an oil, a wax, a silicone.
2. The creped tissue product of claim 1 , wherein the geometric mean tensile of each web is less than about 500 g/3″.
3. The creped tissue product of claim 1 , wherein the geometric mean tensile of the product is less than about 1000 g/3″.
4. The creped tissue product of claim 1 , wherein the product has a strike-through greater than about 5 seconds.
5. The creped tissue product of claim 1 , wherein the product has a strike-through greater than about 2 to about 10 seconds.
6. The creped tissue product of claim 1 , wherein the two or more tissue webs comprise a blend of hardwood fibers and softwood fibers, the hardwood fibers comprising at least about 60 percent and the softwood fibers comprising less than about 40 percent of the total weight of the web.
7. The creped tissue product of claim 1 , wherein the two or more tissue webs comprise an inner layer and at least one outer layer contiguous with the inner layer.
8. The creped tissue product of claim 7 , wherein the two or more tissue webs comprise an inner layer disposed between two outer layers.
9. The creped tissue product of claim 8 , wherein the inner layer comprises softwood fibers and the outer layers comprise hardwood fibers.
10. The creped tissue product of claim 9 , wherein the geometric mean tensile of the product is from about 600 to about 1000 g/3″.
11. A non-post treated multi-ply tissue product comprising two multi-layered creped tissue webs, the tissue webs having three superposed layers, an inner layer consisting essentially of softwood fibers and two outer layers consisting essentially of hardwood fibers, the inner layer being located between the two outer layers, wherein the product has a basis weight from about 33to about 42 gsm, a strike-through from about 5 to about 10 seconds and an absorbent capacity greater than about 27 grams and has not been post-treated with an oil, a wax, a silicone.
12. A non-post treated tissue product comprising at least two wet-pressed creped tissue webs, each web having a first side and a second side and a creping composition comprising a non-fibrous olefin polymer disposed on at least the first side, wherein each tissue web has a basis weight from about 16.5 to 20 gsm and the product has a strike-through greater than about 2 seconds and an absorbent capacity greater than about 27 grams and has not been post-treated with an oil, a wax, or a silicone.
13. The creped tissue web of claim 12 , wherein the geometric mean tensile of each web is from about 300 to about 500 g/3″'.
14. The creped tissue web of claim 12 , wherein the product has a strike-through greater than about 2 to about 10 seconds.
15. The creped tissue web of claim 12 , wherein the web comprises a blend of hardwood fibers and softwood fibers, the hardwood fibers comprising at least about 60 percent and the softwood fibers comprising less than about 40 percent of the total weight of the web.
16. The creped tissue web of claim 12 , wherein the olefin polymer comprises an alpha-olefin interpolymer of ethylene and at least one comonomer selected from the group consisting of a C 4-20 linear, branched or cyclic diene, vinyl acetate, and a compound represented by the formula H 2 C═CHR, wherein R is a C 1-20 linear, branched or cyclic alkyl group or a C 6-20 aryl group, or the alpha-olefin polymer comprises a copolymer of propylene with at least one comonomer selected from the group consisting of ethylene, a C 4-20 linear, branched or cyclic diene, and a compound represented by the formula H 2 C═CHR, wherein R is a C 1-20 linear, branched or cyclic alkyl group or a C 6-20 aryl group.Cited by (0)
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